Key points are not available for this paper at this time.
Matthew Henderson, Paweł Budzianowski, Iñigo Casanueva, Sam Coope, Daniela Gerz, Girish Kumar, Nikola Mrkšić, Georgios Spithourakis, Pei-Hao Su, Ivan Vulić, Tsung-Hsien Wen. Proceedings of the First Workshop on NLP for Conversational AI. 2019.
Henderson et al. (Tue,) studied this question.